红外探测器脉冲激光干扰仿真

Simulation of Pulsed-Laser Jamming to the Infrared Detector

红外探测器在军事或民用上都有着广泛的应用,它主要是通过探测目标的红外辐射来实现对目标的探测。目前应用最多、最广泛的是非成像的红外探测器,即将目标看作一个点源。成像式的红外探测器正得到迅速的推广。成像式红外探测器通过探测目标的不同部分的红外辐射来实现对目标的红外成像,非成像式红外探测器对目标方位和失调角的判断是通过目标红外辐射的调制信息来实现的。本文对红外探测器干扰信号的功率和频率影响进行了数值模拟,取得了一定的结果,理论上初步清楚了脉冲激光干扰红外探测器的作用机理。

;The infrared sensor has an extend use in military and civil industry. There are mainly two kinds ofinfrared sensors. That is, non-imaging detector and imaging detector. Although the infrared imager isdeveloped very quickly, the non-imaging detector which target is looked as a spot is used more often andextensive. The infrared image of target was obtained by detecting the infrared radiation distribution of thetarget surface. And the non-imaging detector got the target information by modulating the target infraredradiant. Through theoretical analysis, the simulation of laser jamming to the non-imaging detector was carriedout. The two key parameters, power and frequency of laser pulse was analyzed in the numeric simulation.The mechanism of laser jamming with the two key parameters was studied and could be found through directobservation.